Recent results of development in Russia of high power gyrotrons

Abstract

The paper presents the latest achievements in development at IAP/GYCOM of MW power level gyrotrons for fusion installations. During last years several new gyrotrons were designed and tested at IAP/GYCOM. Among them are a new version of 170 GHz gyrotron for ITER and multi-frequency (105-140 GHz) gyrotrons for Asdex-Up. All these gyrotrons are equipped with diamond CVD windows and depressed collectors.

Study on a 60 kV/5 A magnetron injection gun for 200 GHz electron cyclotron master

“…First, the major way is the development of high power gyromonotrons for heating and current drive for fusion plasma. It has achieved around 1 MW output power for long pulse operation at the frequency of 170 GHz or 140 GHz [4][5][6]. Second, with the developing of millimeter wave and terahertz science and technology, high frequency gyrotrons are being developed in several institutions in the world [7][8][9][10][11][12][13].…”

“…Electron cyclotron maser (ECM), e.g., gyromonotron, gyroklystron, gyrotron traveling wave tube (gyroTWT), and gyrotron backward wave oscillator (gyroBWO), are important sources of millimeter wave and terahertz coherent radiation, which have been applied as radiation sources in many fields including plasma fusion, plasma diagnostics, electron spin resonance spectroscopy, nuclear magnetic resonance spectroscopy, new medical technology, and so on [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16]. ECM development is mainly being advanced in three ways.…”